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Posted to j-dev@xerces.apache.org by "Shustef, Eugene" <Eu...@westgroup.com> on 2001/03/08 15:18:59 UTC
RE: [Bug 897] New - Memory leak reading large XML-files with SAX
parser
I couldn't help, but notice that you are setting your parser validation to
be true. Are you actually validating against a DTD? If so, do you
have anything declared in the DTD to be an ID type?
-----Original Message-----
From: bugzilla@apache.org [mailto:bugzilla@apache.org]
Sent: Thursday, March 08, 2001 2:28 AM
To: xerces-j-dev@xml.apache.org
Subject: [Bug 897] New - Memory leak reading large XML-files with SAX
parser
http://nagoya.apache.org/bugzilla/show_bug.cgi?id=897
*** shadow/897 Wed Mar 7 23:27:47 2001
--- shadow/897.tmp.18998 Wed Mar 7 23:27:47 2001
***************
*** 0 ****
--- 1,37 ----
+
+===========================================================================
=+
+ | Memory leak reading large XML-files with SAX parser
|
+
+---------------------------------------------------------------------------
-+
+ | Bug #: 897 Product: Xerces-J
|
+ | Status: NEW Version: 1.3.0
|
+ | Resolution: Platform: PC
|
+ | Severity: Major OS/Version: Windows NT/2K
|
+ | Priority: Component: SAX
|
+
+---------------------------------------------------------------------------
-+
+ | Assigned To: xerces-j-dev@xml.apache.org
|
+ | Reported By: t.blickle@ids-scheer.de
|
+
+---------------------------------------------------------------------------
-+
+ | URL:
|
+
+===========================================================================
=+
+ | DESCRIPTION
|
+ I am using the validating SAX-Parser from Xerces as follows (Win NT SP5,
JDK
+ 1.3):
+
+ SAXParser parser = new SAXParser();
+ parser.setFeature("http://xml.org/sax/features/validation",true);
+ parser.setFeature("http://xml.org/sax/features/namespaces",false);
+ parser.setDocumentHandler(handler);
+ parser.setEntityResolver(m_EntityResolver);
+ parser.setErrorHandler(m_errHandler);
+
+ InputStream in = new java.io.FileInputStream(currfilename);
+ parser.parse(new org.xml.sax.InputSource(in));
+
+ When I read large XML-files (25MB) the memory consuption keeps growing the
+ whole execution time of the programm. Using a memory profiles shows that
the in
+ class org.apache.xerces.util.StringPool the variable fString[][] is
allocating
+ approx 6*8192 Strings at the end of the programm run (Heap usage about
8MB).
+
+ This error occurs although a used the latest version 1.3.0. Using an older
+ version of Xerces the heap usage is even worse (about 50MB).
+
+ I my application I expect XML files up to 100-300MB.
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